Status of research on mold flux for high aluminum steel

In light of the characteristics that the mold flux Al2O3 content is enormously increase in the process of continuously casting the high Al steel the present paper introduces the origin of Al2O3 in the mold flux and its influence on the properties as well as absorption of Al2O3 by the mold flux.By way of summarizing the status quo of research on the high Al containing mold flux at home and abroad in the recent years it's found out that at present time most of the mold flux are mainly composed of low Al2O3 and high SiO2 constituents and a large quantity of slag rim are formed in process of usage,thus resulting in occurrence of deeper surface depression of the slab.On the contrary high Al2O3 and low SiO2 constituents can help keep chemical compositions and properties of the mold flux intact in continuously casting the high Al steel and therefore they can be used in the research and development of the mold flux for high Al steel.